Subset Data from an Imported and Formatted Shape File
# S3 method for shapeCarcass
subset(x, subset, select, ...)# S3 method for shapeLayout
subset(x, subset, select, ...)
object of the same class as x, subsetted to values of select
equal to some element in subset.
object to be subsetted
values to subset by. For example, to subset x to include
only turbines "t1" and "t2", then subset = c("t1", "t2").
The name of the column with turbine names is given in select.
the name of the column with the values to subset by. For example,
to subset x by turbines names "t1" and "t2" as found in the "turbine"
column in the data, use select = "turbine" and subset = c("t1", "t2").
ignored